Carmarthen
Carmarthen is covered by postcode districts SA31 and SA33. It is in the Carmarthenshire council area, Wales.
Every postcode in Carmarthen, and which are new since 2020
- New since 2020: 24
- In use before 2020: 495
- Outline: where 5 or more new postcodes since 2020 lie together
Of the 519 postcodes in Carmarthen that ONS places, 24 are new since 2020 and 495 were in use before 2020.
Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. New since 2020 means it came into use in January 2020 or later. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.
The middle of its postcodes: latitude 51.8571, longitude -4.3097. Open this area on OpenStreetMap
Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; roads, rivers and built-up areas: Ordnance Survey open maps. Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre.
The 5 newest postcodes
What is it like to live in Carmarthen?
Homes sold for a typical £200,000 in the 12 months to September 2026. At 285 of the 494 postcodes Ofcom reports on, every home and business can get gigabit broadband. It has 7 primary schools and 1 secondary school at its postcodes. 3 GP practices are at its postcodes. The nearest railway station is Carmarthen, 500 metres from the middle of its postcodes in a straight line.
We don't rate places; here are the figures so you can judge.
Sources: HM Land Registry Price Paid Data; Ofcom Connected Nations; Welsh Government school list; NHS GP practices; NaPTAN. Each figure is from a section of this page, which gives its date.
What do homes cost in Carmarthen?
Homes in Carmarthen sold for a typical £200,000 in the 12 months to September 2026, across 169 sales, HM Land Registry's figures show. The 12 months before gave £201,500 from 210 sales: not a change larger than chance would explain, given which homes happened to sell.
- Detached £287,500 54 sales
- Semi-detached £220,000 49 sales
- Terraced £145,500 60 sales
- Flat or maisonette £168,750 6 sales
Each bar is that kind's typical price, against the most expensive kind here.
Across the whole SA31 district, Carmarthen's main postcode district: a typical £212,500.
Sales at the postcodes ONS places in Carmarthen: standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.
Source: HM Land Registry Price Paid Data, files dated 28 October 2026.
Are new homes being built in Carmarthen?
24 of the 519 postcodes now in use in Carmarthen came into use in January 2020 or later, ONS says. In the 12 months to September 2025, 5 of the 210 homes sold in Carmarthen were newly built (2%), HM Land Registry's records show; across the SA31 district, 15%.
The newest postcodes
A new postcode is often a new street or estate, but Royal Mail also makes new postcodes when it reorganises old ones, so not every one means new homes. Only postcodes still in use are counted.
New homes among the homes sold
| Period | In Carmarthen | Across the SA31 district |
|---|---|---|
| The 12 months to September 2026 | 1 of 169 (Under 1%) | 6 of 190 (3%) |
| The 12 months to September 2025 | 5 of 210 (2%) | 38 of 262 (15%) |
Standard sales of homes at market value that HM Land Registry marks as newly built. New homes take longer to be registered than other sales, so the latest 12 months count fewer of them than were sold. A share is given from 5 sales or more.
Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; HM Land Registry Price Paid Data, files dated 28 October 2026.
What broadband can you get in Carmarthen?
Ofcom reports on 494 of the 519 postcodes in Carmarthen. At 285 of them every home and business can get gigabit broadband, and at 1 some cannot get decent broadband (10 Mbit/s).
Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.
Check one address on Ofcom's checkerSource: Ofcom Connected Nations, Connected Nations, Spring 2026, data for January 2026.
Which schools are in Carmarthen?
The open schools at the postcodes in Carmarthen. A school for ages 4 to 18 is listed under both. Distances are straight lines from the middle of its postcodes. Distance is not a catchment: each council sets its own admission rules.
Primary
Source: Welsh Government school list, read 27 October 2026. Each school opens its page on My Local School.
How far is the station from Carmarthen?
The nearest railway station to the centre point of the postcodes in Carmarthen is Carmarthen Rail Station, 500 m away in a straight line.
- Carmarthen Rail Station Railway station 500 mWalk
- Ferryside Rail Station Railway station 10.7 kmDrive
- Kidwelly Rail Station Railway station 13.7 kmDrive
Straight-line distances from the centre point, not routes. Walk: under 1.2 km. Cycle: 1.2 to 5 km. Drive: further.
Straight-line distances from the middle of the postcodes, not routes. Each postcode page lists its own nearest stations and bus stops. The Department for Transport's register does not say how often services run.
Source: NaPTAN, read 17 October 2026.
Which GP surgeries are in Carmarthen?
The GP practices at the postcodes in Carmarthen. Each practice sets the area it takes patients from, so check with it before registering.
- Furnace House Surgery Phone 01267 236616 450 mWalk
- St Peter's Surgery Phone 01267 236841 550 mWalk
- Meddygfa Parc Phone 01267 234774 1.6 kmCycle
Source: NHS GP practices, read 17 October 2026.
Is Carmarthen safe? Crime recorded around it
Police.uk records 2,353 crimes and reports of anti-social behaviour within a mile of the middle of the postcodes in Carmarthen over the 12 months from September 2025 to August 2026. August 2026 is the latest month it has published. These are counts, not a rate: we hold no count of the people who live, work or pass through, so we do not say whether a place is safe.
Each month, September 2025 to August 2026
- 146 September 2025
- 177 October 2025
- 177 November 2025
- 181 December 2025
- 174 January 2026
- 197 February 2026
- 226 March 2026
- 245 April 2026
- 208 May 2026
- 192 June 2026
- 215 July 2026
- 215 August 2026
By kind, over the 12 months
Also: other crime 67, vehicle crime 35, possession of weapons 19, theft from the person 17, robbery 9, bicycle theft 7.
Police.uk says its locations "always represent the approximate location of a crime". Each crime is moved to the nearest of a fixed list of map points, each over a street centre, a public place or a commercial premises, chosen so that every point covers at least eight addresses or none. A mile is a wide circle: in a town it takes in the centre and its shops, where much crime is recorded.
Crime around one postcodeSource: police.uk, data to August 2026, from its download of 30 September 2026.
Who runs Carmarthen?
- Council
- Carmarthenshire
- Parliamentary constituency
- Caerfyrddin
- Police force area
- Dyfed-Powys
- Country
- Wales
- MP
- Ann Davies (Plaid Cymru)
All 519 postcodes here share these. Wards differ: check a postcode for yours. What council am I in?
Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; UK Parliament, read 14 October 2026.
Moving to Carmarthen
Who to tell and what to sort out in your first week.
- Tell Carmarthenshire about council tax Council tax, on carmarthenshire.gov.wales
- Register to vote at the new address Register to vote on GOV.UK
- Register with a GP practice The GP practices in Carmarthen
- Take meter readings on the day you move in
- Power cut? Call 105. It is free. About 105, the power cut number
- Find out your bin day Check your bin day on BinDayBuddy, which reads the council's own collection system
Carmarthen postcodes
519 postcodes in use in Carmarthen, by district:
Those districts are all in the SA postcode area.
Check a Carmarthen postcode
Enter a full postcode to see its ward, its flood risk, house prices in its sector and its nearest schools.
Do not know the postcode? What is my postcode?
Places near Carmarthen
With the typical price of a home in each, to set beside Carmarthen's £200,000. Distances are straight lines between the middles of each place's postcodes.
Quick answers about Carmarthen
- What is the postcode for Carmarthen?
- Postcode districts SA31 and SA33, with 519 postcodes in use. Source: ONS.
- Which council is Carmarthen in?
- Carmarthenshire. Source: ONS.
- Who is the MP for Carmarthen?
- Ann Davies (Plaid Cymru), for Caerfyrddin. Source: UK Parliament and ONS.
- How much are houses in Carmarthen?
- A typical £200,000 in the 12 months to September 2026, from 169 sales. Source: HM Land Registry.
- What schools are in Carmarthen?
- Primary schools at its postcodes include Y Dderwen, Myrddin Community Primary School and St Mary's (Carmarthen); secondary schools at its postcodes include Queen Elizabeth High School. Source: Welsh Government.
- Does Carmarthen have a railway station?
- Yes: Carmarthen station, 500 metres from the middle of its postcodes in a straight line. Source: Department for Transport.
- What broadband can you get in Carmarthen?
- Ofcom reports on 494 of the 519 postcodes in Carmarthen. At 285 of them every home and business can get gigabit broadband, and at 1 some cannot get decent broadband (10 Mbit/s). Source: Ofcom.
- Are new homes being built in Carmarthen?
- 24 of the 519 postcodes now in use in Carmarthen came into use in January 2020 or later, ONS says. In the 12 months to September 2025, 5 of the 210 homes sold in Carmarthen were newly built (2%), HM Land Registry's records show; across the SA31 district, 15%. Source: ONS and HM Land Registry.
Where the facts on this page come from
- Office for National Statistics: ONS Postcode Directory
- HM Land Registry Price Paid Data
- Ofcom Connected Nations
- Welsh Government school list
- Department for Transport: NaPTAN
- NHS England: NHS GP practices
- data.police.uk: police.uk
- UK Parliament
Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. Contains public sector information licensed under the Open Government Licence v3.0. Contains Parliamentary information licensed under the Open Parliament Licence v3.0.
Licences: Open Government Licence v3.0; Open Parliament Licence v3.0.
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